VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BV053F Observer: Vlemmings, W.H.T. Project type: VLBA Obs filename: bv053fcrd.* Date/Day: 2005FEB19/050 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Brian Willard. WEA: all sites dark. LA writing MkV, VSN NRAO-058, Bank A. KP writing MkV, VSN NRAO-046, Bank B. Vclock values nominal. GPS delta less than 10 microseconds all sites. UT1-UTC = -0.54 all sites. 0815 Begin, with all antennae on source. 0815-0215 %PT was not placed in STMODE prior to observing starting. Did not find out until after observing ended when operator checked the MK5 display. There may be some problems correlating the data for this site. 0815-0215 %OV was not placed in STMODE prior to observing starting. Did not find out until after observing ended when operator checked the MK5 display. There may be some problems correlating the data for this site. 0918 WEA: rain LA. 0939 WEA: high wind gusts KP. 1005 Readback tests good at all sites. 1113 Readback tests good at all sites. 1244 Readback tests good at all sites. 1335 WEA: scattered clouds SC,FD. 1335 WEA: overcast HN,NL. 1415 Readback tests good at all sites. 1443 New operator: T. Perreault 1548 NL bad readback drive 2 track 32; all other sites ok 1548 HN wea: clear, no precipitation 1716 Readback check ok 1838 PT bad readback drive 2 track 20; all other sites ok 1848 MK wea: clear, no precipitation 1945 Site weather (via webcams): SC, HN, BR, MK: clear NL, OV: overcast FD, PT: mostly cloudy LA: webcam dark - stopped updating @ 0435 MST LA, PT, KP: rain showers 2006 SC readback check ok 2018 Readback check ok 2058 LA recording Mark V bank B disc pack NRAO-050 2104 BR wea: scattered high clouds, no precipitation 2118 OV wea: overcast, intermittant drizzle 2319 Readback check ok 2320-2330 *PT autostowed. Power glitch. Repointed. COM 100 10 0000 Date is 2005FEB20/051. 0039-0043 *PT autostowed. Power glitch. Repointed. COM 100 4 0046 Readback check ok 0154 SC observing ends 0215 End. Downtime Summary: Total downtime : 14 min Percentage downtime of observing: 0.1% Average downtime per hour : 0.1 min Total scheduled observing time (# Antennas): 10800 min (10) Notes: * = Entries where data was affected. % = Entries where data may have been affected. & = Entries where the site tech was called out. WEA = Weather entries. MF# = Maintenance form or major downtime category associated with a problem. %AD = The percentage of an antenna affected by a problem. AMD = Total antenna-minutes downtime for a problem. Tsys = System Temperature (TP/SP x Tcal/2) ACU = Antenna Control Unit FRM = Focus/Rotation Mount RFI = Radio Frequency Interference VME = Site control computer CB = Circuit Breaker vclock = Program that compares site clock time to a standard.